我正在尝试Here的一个示例，用于ontouch图像缩放和触摸移动屏幕缩小的其他部分，所以我只是找到了这个链接，并尝试在代码中实现，但有一些错误，如
04-06 10:58:53.618: ERROR/AndroidRuntime(493): FATAL EXCEPTION: main
04-06 10:58:53.618: ERROR/AndroidRuntime(493): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.Zoom_imageview/com.Zoom_imageview.Zoom_imageviewActivity}: android.view.InflateException: Binary XML file line #2: Error inflating class com.sonyericsson.zoom.ImageZoomView
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.os.Handler.dispatchMessage(Handler.java:99)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.os.Looper.loop(Looper.java:123)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread.main(ActivityThread.java:4627)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at java.lang.reflect.Method.invokeNative(Native Method)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at java.lang.reflect.Method.invoke(Method.java:521)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at dalvik.system.NativeStart.main(Native Method)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class com.sonyericsson.zoom.ImageZoomView
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:576)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.Activity.setContentView(Activity.java:1647)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at com.Zoom_imageview.Zoom_imageviewActivity.onCreate(Zoom_imageviewActivity.java:38)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
04-06 10:58:53.618: ERROR/AndroidRuntime(493): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
代码：
package com.Zoom_imageview;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import com.Zoom_imageview.zoom.ImageZoomView;
import com.Zoom_imageview.zoom.SimpleZoomListener;
import com.Zoom_imageview.zoom.ZoomState;
import com.Zoom_imageview.zoom.SimpleZoomListener.ControlType;
public class Zoom_imageviewActivity extends Activity {
/** Called when the activity is first created. */
private static final int MENU_ID_ZOOM = 0;
/** Constant used as menu item id for setting pan control type */
private static final int MENU_ID_PAN = 1;
/** Constant used as menu item id for resetting zoom state */
private static final int MENU_ID_RESET = 2;
/** Image zoom view */
private ImageZoomView mZoomView;
/** Zoom state */
private ZoomState mZoomState;
/** Decoded bitmap image */
private Bitmap mBitmap;
private SimpleZoomListener mZoomListener;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try
{
mZoomState = new ZoomState();
mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
mZoomListener = new SimpleZoomListener();
mZoomListener.setZoomState(mZoomState);
mZoomView = (ImageZoomView)findViewById(R.id.zoomview);
mZoomView.setZoomState(mZoomState);
mZoomView.setImage(mBitmap);
mZoomView.setOnTouchListener(mZoomListener);
resetZoomState();
}catch (Exception e) {
// TODO: handle exception
}
}
@Override
protected void onDestroy() {
super.onDestroy();
mBitmap.recycle();
mZoomView.setOnTouchListener(null);
mZoomState.deleteObservers();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(Menu.NONE, MENU_ID_ZOOM, 0, R.string.menu_zoom);
menu.add(Menu.NONE, MENU_ID_PAN, 1, R.string.menu_pan);
menu.add(Menu.NONE, MENU_ID_RESET, 2, R.string.menu_reset);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_ID_ZOOM:
mZoomListener.setControlType(ControlType.ZOOM);
break;
case MENU_ID_PAN:
mZoomListener.setControlType(ControlType.PAN);
break;
case MENU_ID_RESET:
resetZoomState();
break;
}
return super.onOptionsItemSelected(item);
}
/**
* Reset zoom state and notify observers
*/
private void resetZoomState() {
mZoomState.setPanX(0.5f);
mZoomState.setPanY(0.5f);
mZoomState.setZoom(1f);
mZoomState.notifyObservers();
}
}
XML ::
<?xml version="1.0" encoding="utf-8"?>
<com.sonyericsson.zoom.ImageZoomView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/zoomview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
请帮帮我......
答案 0 :(得分：2)
<?xml version="1.0" encoding="utf-8"?>
<com.sonyericsson.zoom.ImageZoomView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/zoomview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
将其更改为
<?xml version="1.0" encoding="utf-8"?>
<com.Zoom_imageview.zoom.ImageZoomView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/zoomview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
或者如果你没有在你的项目中添加一个ImageZoomView类，那么请像示例Here中一样添加它
答案 1 :(得分：0)
在xml中更改为
<com.Zoom_imageview.Zoom_imageviewActivity
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/zoomview"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
答案 2 :(得分：0)
试一试 -
package com.activity;
import com.layout.ZoomImageViewer;
import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
public class FullScreenImageViewer extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ZoomImageViewer zoom = new ZoomImageViewer(this);
zoom.setBackgroudImage((Bitmap)getIntent().getParcelableExtra("image"));
setContentView(zoom);
}
}
和第二课
package com.layout;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.ZoomControls;
public class ZoomImageViewer extends RelativeLayout {
private final Context context;
private int zoomControler = 100;
private ViewImage viewImage = null;
private ZoomControls zoom = null;
private boolean isLowVirtualMemory = false;
public ZoomImageViewer(Context context) {
super(context);
this.context = context;
setLayout();
}
public ZoomImageViewer(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
setLayout();
}
public ZoomImageViewer(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
this.context = context;
setLayout();
}
private void setLayout() {
setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
viewImage = new ViewImage(context);
addView(viewImage);
RelativeLayout layout = new RelativeLayout(context);
LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
zoom = new ZoomControls(context);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
layout.setLayoutParams(params);
params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
zoom.setLayoutParams(params);
zoom.setVisibility(View.GONE);
zoom.setZoomSpeed(0);
layout.addView(zoom);
addView(layout);
zoom.setOnZoomInClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewImage.onZoom(true);
}
});
zoom.setOnZoomOutClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
viewImage.onZoom(false);
}
});
}
public void setBackgroudImage(byte[] byteImage) {
setBackgroudImage(BitmapFactory.decodeByteArray(byteImage, 0, byteImage.length));
}
public void setBackgroudImage(Bitmap bm) {
if(viewImage != null)
viewImage.setImage(bm);
}
public void setBackgroudImage(int id) {
if(viewImage != null)
viewImage.setImage(((BitmapDrawable)context.getResources().getDrawable(id)).getBitmap());
}
private final class ViewImage extends ImageView implements OnTouchListener {
private final int MAX_SIZE = 1500;
private final int MIN_SIZE = 80;
private Bitmap bitmap = null;
private LayoutParams params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
private float mx, my, curX, curY;
public ViewImage(Context context) {
super(context);
setLayout();
}
public ViewImage(Context context, AttributeSet attrs) {
super(context, attrs);
setLayout();
}
public ViewImage(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setLayout();
}
private void setLayout() {
params.addRule(RelativeLayout.CENTER_IN_PARENT);
setLayoutParams(params);
setScaleType(ScaleType.CENTER);
setFocusable(true);
setOnTouchListener(this);
}
public void setImage(Bitmap bitmap) {
if(bitmap == null) {
zoom.setVisibility(View.GONE);
return;
}
this.bitmap = bitmap;
zoom.setVisibility(View.VISIBLE);
zoomControler = bitmap.getWidth();
setImageBitmap(Bitmap.createScaledBitmap(this.bitmap, zoomControler, zoomControler, true));
}
public void onZoom(boolean zoomIn) {
if((zoomIn) && (zoomControler < MAX_SIZE) && (!isLowVirtualMemory))
zoomControler += 10;
else {
if(zoomControler > MIN_SIZE)
zoomControler -= 10;
}
try {
setImageBitmap(Bitmap.createScaledBitmap(this.bitmap, zoomControler, zoomControler, true));
isLowVirtualMemory = false;
}catch(OutOfMemoryError e) {
isLowVirtualMemory = true;
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if(keyCode == KeyEvent.KEYCODE_DPAD_UP) // zoom in
onZoom(true);
else if(keyCode == KeyEvent.KEYCODE_DPAD_DOWN) // zoom out
onZoom(false);
return(true);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mx = event.getX();
my = event.getY();
break;
case MotionEvent.ACTION_MOVE:
curX = event.getX();
curY = event.getY();
scrollBy((int) (mx - curX), (int) (my - curY));
mx = curX;
my = curY;
break;
case MotionEvent.ACTION_UP:
curX = event.getX();
curY = event.getY();
scrollBy((int) (mx - curX), (int) (my - curY));
break;
}
return(true);
}
}
}